Machine for crushing ob pulverizing ores



invitan srariis Patrizier onirica.

ARNOLD BUFFUM, OF PERTH AMB'OY, NEW JERSEY.

MACHINE FOR CRUSHING OR PULVERIZING CRES.

Specification of Letters .Patent No. 12,191, dated January 9, 1855.

To all 'whom/15 may concern l Be it known that I, ARNOLD Borrow, of Perth Amboy, Middlesex county, and State of New Jersey, have invented a new and Improved Combination of a Corrugated Bed-Plate with a Correspondingly-Corrugated Rocking Ore-Crusher, which combination is called Butfums Progressive Ore-Pulverizer; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making a part of this specification.

The nature of my invention consists in constructing the upper surface of the bed plate in corrugated form, and in combining therewith a correspondingly corrugated rocking Crusher for crushing and pulverizing aurifero-us ores and other substances.

I construct my bed plate, say nine feet long, and two feed wide, longitudinally curved upward, so as to represent onefourteenth part of a circle of one hundred and twenty-six feet in circumference; it is then placed in a position which gives an elevatio-n to one endA of the bed plate, o-f abo-ut two feet higher than the other end, giving it the position of a hollow, curved, inclined plane. The upper surface of the bed plate is gro-oved crosswise, having semicircular projections rising four inches (more or less) between the grooves. Side plates are attached to the bed plate rising a few inches higher than the projections between the grooves, to prevent the escape of whatever may be passing from the upper to the lower end of the bed plate.

The rocking Crusher, corresponding in length and width withv the bed plate, has its lower surface so rounded longitudinally, as

yto represent one-seventh part of a circle of grooves in the bed plate, similar to thevitting of gears on gear wheels. The rocker is ,so constructed, as to be loaded with any amount of rocks or weights, that may be required to give it force and efficiency in its operation.

In practical operation, a rod is connected with the rocker, and by the application of power through a crank o-r any arrangement which will give to the rod a reciprocating motion the rocker is rocked in the curve of the bed plate; this rocking motion raises the whole weight of the rocker with all its load off from what lays in one groove in the bed plate, and brings the next projection -on the rocker, to strike with breaking power, to press with crushing fo-rce, and to rub with pulverizing eiiicacy, upon whatever lays in the next groove in the bed plate. f

The ore is fed into the elevated end of the bed plate, accompanied by a stream of water, the inclined position of the bed plate, in

combination with the action o-f the rocker, and

the passing current of water, causes the ore as it becomes crushed and pulverized to pass toward the discharge opening at the lower end of the bed plate.

In all the arrangements where the newly fed coarse lums of ore are promiscuously `scattered throughout the whole operation, they present a great obstruction to a perfect pulverization. By this arrangement, for feeding the ore in at one end, and passing it progressively to the other end, I avoid that obstruction, and thus secure a progressive and more perfect pulverization.

lIn the drawings Figure 1 representsr a I do not claim to be the exclusive inventor( of corrugations in machines for pulverizing ores. Neither do I claim to be the exclusice inventor of an arrangement for a progressive pulverization of ores.l Neither do I seek by this patent to secure the applicato-n of the rocking action, independent of plate, for the purpose, and substantially as its combinations, but described n this specification.

What I do Claim as my invention, and de- Perth Amboy, New Jersey, l5 Dec., 1854. sire to secure byrLetters Patent is; n 5 The rocking :lotion of the crusher, in com- ARNOLD BUFFUM' bnaton with corrugatons on the lower sur- Witnesses: face of the rocker, and Corresponding corru- CLEMENT O. READ,

gatons on the upper surface of the bed HENRY C. HOWELLS. 

